Alpha with Nodes?

hi, did somebody can tell me how can i do an Alpha transparenci effect in the node editor?, but without using the materia node or the extended material please?, ευχαριστίες (thanks)

Could you please define your problem more? I don’t think I understand what you’re trying to say.

what i want is, do an Transparency effect on the Node Editor, like making a plane transparent, but without the Material or Extended Material Nodes, can someone help me please?